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Ivory vs Whalebird: catalog facts
Ivory	Whalebird
Paid Paid app with a free 7-day trial.	Free Free software with no advertising, supported by GitHub Sponsors donations.
macOS, iOS	Windows, macOS, Linux
Timeline position syncs across devices Native design for iPhone, iPad and Mac	Works with Mastodon, Pleroma, Friendica, Firefish, GoToSocial and Pixelfed Multiple accounts with streaming timelines
Apple platforms only Paid after the trial	Single-column layout only; multi-column needs the separate Fedistar app Desktop only, with no mobile version
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License not stated
Account needed	Account needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.